Christopher Nolan or Quentin Tarantino?

I respect both filmmakers. A friend asked me who's better; I couldn't answer. Nolan displays cerebral mastery -- a genius -- & complex stories/characters. It's like watching a puzzle on film. From Memento to The Presige to Inception to Following to TDK.
Tarantino is also a genius and an innovator -- much like Nolan. His films are oddly unique. Master of dialog and obviously an historian in his own right. Pulp Fiction, Reservoir Dogs, Kill Bill, and Basterds were all so entertaining and paced perfectly...
It's hard to pick between two directors with contrasting styles...who would you pick?